Plastic shopping bags are commonly found in supermarkets and shopping malls, and ordinary people also use these film bags indispensable in their lives. Usually, there are tens of thousands of customized shopping bags in shopping malls and supermarkets. Because of the particularity of plastic films, mass production is required.
Generally, the varieties of customized plastic bags for customers are supermarket shopping bags, clothing tote bags, vest bags, food bags, etc. Although they are collectively referred to as plastic bags, their material quality is different. The following is a detailed explanation.
The first one is low pressure polyethylene material, which has good tensile force and hardness, and bright color. It is mainly used to make supermarket vest bags, customized shopping bags, etc.
The second is high-pressure polyethylene material, which is softer, smoother, more flexible, and brighter in color than low-pressure materials. It is the first choice for most clothing bags and gift bags. The grade of customized plastic bags is generally higher than that of low-pressure film materials .
The third is polyvinyl chloride material, which itself has high strength, corrosion resistance, non-flammability, but in order to enhance the heat resistance, toughness, ductility, etc. Agents, anti-aging agents and other toxic auxiliary materials. Therefore, it is not suitable for food packaging, and is often used in cosmetic packaging and box packaging.
The fourth is polypropylene material, which has low density, strength, stiffness, hardness and heat resistance better than low-pressure materials, but it is easy to break, easy to age, and not wear-resistant, so it is mostly used in clothing packaging and textile packaging.
The above are the commonly used materials for custom-made plastic bags. The plastic bags they make are of different quality and different uses. Of course, plastic bags of different materials cannot be mixed up, because some plastic bags contain toxic chemicals, such as PVC plastic bags. Food spoils food.
Although plastic bags of different materials have different uses, we must keep in mind to protect the environment, protect the nature, do not mix them up, and do not throw them away for abuse.
Post time: Jun-20-2022